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The intelligent connected vehicle test base built by China Automotive Engineering Research Institute Co., Ltd. was completed. The base is the first comprehensive test and evaluation base for intellig...[Details]
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Electronic meters are used to measure gas, water, heat and electricity. They are public meters that we use every day but rarely pay attention to, such as gas and water meters, heat meters, and elect...[Details]
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Working principle of electric contact pressure gauge The electric contact pressure gauge is an instrument that is equipped with an electrical device on the basis of an ordinary pressure gauge. Wh...[Details]
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ROM read-only memory is used to store DS18B20 ID code. The first 8 bits are single-line serial code (DS18B20 code is 19H), the following 48 bits are the unique serial number of the chip,...[Details]
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Since eyeballs determine business opportunities, let’s first look at the following product photos. How are these cool UIs developed? What operating systems do these products use? Android?
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Abstract:
This paper introduces the design and implementation of a network video surveillance system based on embedded WEB technology, focusing on the design ideas and system architecture of ...[Details]
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In the single-chip microcomputer application system, low-cost and flexible digital tubes (LED) are generally used as displays. The commonly used is a 4-8-bit eight-segment LED digital tube display, wh...[Details]
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Tesla has a mysterious project named Dojo that is about to surface, which will help Tesla achieve fully autonomous driving faster. Recently, Tesla CEO Elon Musk hinted on Twitter that Dojo will make ...[Details]
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Beautiful music can be heard in every street and alley, but do you know how the audio transformers that work hard behind these beautiful sounds transmit these sounds? What are the differences betwe...[Details]
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Lithium-ion batteries, known as the "ultimate energy" and "green energy", have been increasingly widely used in people's production and life since their introduction in the 1990s, from button batte...[Details]
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With the development of computer technology and
power
electronics
technology, mobile
phones
, digital products, laptops, portable instruments and other devices are becoming in...[Details]
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When programming using the LL library, it is found that even if the peripheral interrupt is enabled, the interrupt cannot be entered. Generally, peripherals have their own registers to control the in...[Details]
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According to Jiwei.com on February 1, the latest research from Counterpoint shows that China's overall smartphone sales in 2020 fell 17% year-on-year, the largest drop in the past three years. Smar...[Details]
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Abstract DMA as a character device and call it in the initialization function
void *dma_alloc_writecombine(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp)
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A servo electronic transformer is an electrical device used to convert input voltage into a specific voltage and current. It is widely used in industrial automation, power systems, and communicatio...[Details]
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